Edit: I see you flipped it around. I thought I was going crazy because I've always known the north facing side to be the cold side. Many plants didn't live very long in my north facing apartment.
Ya for a second I just assumed that was the only possible reason why they wouldn't make the whole thing clear... then I actually thought about it... I hope HKS wasn't just using a sun model for some southern hemisphere stadium and forgot to reverse it
![Smile :-)](./images/smilies/icon_e_smile.gif)
We're at 45 degrees north, city houses here are offset to the north side of their property with big windows to the south and small windows to the north precisely because all the sun is in the southern sky. Unless they're north-corner lot houses (an interesting exception), small city houses typically have their stairway and bathroom on the north side, to maximize living room and dining room sun on the south side of the house.
I'm not picking on any specific person, but generally observing that we as a society spend *FAR* too much time inside if people don't instinctively, automatically understand that the sun is in the south at midday in Minnesota - quite a bit so in the winter, less extremely so in the summer but still noticeably so. They're trying to *maximize* sunlight by putting all the windows to the south, this being a cold, northern climate, just as Scandinavian and Scandinavian-American architects have done on both sides of the Atlantic for centuries.